let 1+2+4+8+...... =s s= 1+2(1+2+4+8+........) s=1+2s s=-1 but sum of infinite terms cannot be -1 so, what's the answer
7/8 1/2 + 1/4 + 1/8 = 4/8 + 2/8 + 1/8 = 7/8
32
1/4 + 3/8 = 2/8 + 3/8 = 5/8
1 and 7/8 + 2 and 3/8 = 4 and 1/4
1/8 plus 1/4 plus 1/2 = 7/8 or 0.875
8 + 16 - 8 + 4 + 13 = -1
8 + 1 = 9 5 + 4 = 9 9 + 9 = 18 ( 8 + 1 + 5 + 4 = 18) The answer is 18.
4+4=8+0=8+1=9+1=10+0=10+1=11 It equals 11. You're welcome.
The answer is: -1-8+4-(-6) = 1
-1-8+4-(-6?
3 plus 1 plus 4 equals 8
The commutative property of addition.
4+3+1=8
-8 is.
5 + (10 x 2) + 8 ÷ 4 + 1 = 28
The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1